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Polymer concrete overlay and construction method thereof

A construction method and concrete technology, which can be applied to cohesive pavement paved on site, buildings, roads, etc., can solve the problems of easy deformation of the road surface, increased frictional resistance, and tire impact, so as to shorten the construction period, improve the flexural strength, extend the The effect of service life

Pending Publication Date: 2021-11-05
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, compared with cement roads, asphalt pavement has better water seepage performance, obvious marking lines, good toughness, and low maintenance cost, but the road surface is soft and easily deformed in hot summer, resulting in increased frictional resistance, which is not good for car tires influences

Method used

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  • Polymer concrete overlay and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] In this embodiment, the formula of the mixture for the aggregated concrete overlay is: 700 kg of crushed stones of 5 cm to 10 cm, 580 kg of crushed stones of 3 cm to 5 cm, 580 kg of medium sand of 0 to 2 cm, 360 kg of 42.5 ordinary Portland cement, epoxy resin glue 5kg, 0.9kg of polypropylene fiber (the specification is 20cm in length), 179kg of water, and the thickness of laying is 7cm. The formula of the mixture for the protective layer is: 50kg of 42.5 ordinary Portland cement, 10kg of epoxy resin glue, 1kg of water-soluble pigment and 300kg of water, and the thickness of the laying is 5cm.

[0043] The construction method of the polymeric concrete overlay of above-mentioned formula is:

[0044] 1) Use a forced cement concrete mixer to mix the mixture of the above formula evenly, and the time for mixing the mixture is 100 to 110 seconds.

[0045] 2) After the working surface is cleaned by the knapsack blower, install the lateral formwork on the outside of the workin...

Embodiment 2

[0051] The difference between this example and Example 1 is that the formula of the aggregated concrete overlay is: 300kg of crushed stones of 10cm to 13cm, 500kg of crushed stones of 5cm to 10cm, 480kg of medium sand of 2 to 5cm, and 42.5kg of ordinary Portland cement. 360kg, 5kg of epoxy resin glue, 0.9kg of polypropylene fiber (the specification is 26cm in length), 170kg of water, and the thickness of the laying is 10cm.

[0052] The difference between the construction method of the aggregated concrete overlay of the above formula and that of Example 1 is that the mixing time of the mixture is 110 to 120 seconds; a rubber-wheeled road roller of more than 30T is used, and rubber rollers are not mixed with aggregated concrete. The mixture is sticky, and it is placed for 30 to 50 minutes after the rolling is completed. After the surface of the material "sweats", use a double-drive double-vibration road roller to perform surface finishing operations, and roll it into an overcoat...

Embodiment 3

[0055] The difference between this example and example 2 is: the formula of the mixture of aggregate concrete overlay is: 12cm~20cm gravel 300kg, 5cm~10cm gravel 500kg, 3cm~5cm medium sand 580kg, 42.5 ordinary portland cement 360kg , 5kg of epoxy resin glue, 0.9kg of polypropylene fiber (the specification is 40cm in length), 170kg of water, and the thickness of the laying is 16cm.

[0056] The difference between the construction method of the aggregated concrete overlay of the above formula and that of Example 1 is that the mixing time of the mixture is 120 to 140 seconds; a rubber-wheeled road roller of more than 30T is used, and rubber rollers are not mixed with aggregated concrete. The mixture is sticky, and it is placed for 50 to 60 minutes after the rolling is completed. After the surface of the material "sweats", use a double-drive double-vibration road roller to perform surface finishing operations, and roll it into a cover layer with a thickness of 16cm.

[0057] The v...

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Abstract

The invention relates to a polymeric concrete overlay and a construction method thereof, belonging to the technical field of road construction. The polymeric concrete overlay comprises the following components in parts by weight: 65-78 parts of aggregate, 10-20 parts of cement, 0.1-0.6 part of modified glue, 0.03-0.08 part of polypropylene fibers and 1-25 parts of water, wherein the aggregate is prepared by blending gravels with two or more particle sizes and sand with corresponding particle sizes, the cement is Portland cement, and the modified glue is epoxy resin glue. The overlay has the beneficial effects that the overlay is good in flexibility, high in strength and impact resistance, good in stability and long in service life; and a construction method of the overlay has the comprehensive advantages of reliable quality, overall cost reduction, shorter construction period and environmental protection.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to a polymeric concrete overlay and a construction method thereof. Background technique [0002] At present, existing road construction pavements include cement pavement and asphalt pavement. Cement pavement has the disadvantages of high cement cost, unclear traffic markings, poor water permeability, and high maintenance costs. However, when the weather is good, cement pavement is a superior location for driving. In addition, compared with cement roads, asphalt pavement has better water seepage performance, clear marking lines, good toughness, and low maintenance cost, but the road surface is soft and easily deformed in hot summer, resulting in increased frictional resistance, which is not good for car tires influences. [0003] Both the existing cement pavement and asphalt pavement have certain defects. How to overcome the above defects, integrate the advantages of ceme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04E01C7/34E01C19/47E01C19/48E01C23/03E01C23/09C04B111/82
CPCC04B28/04E01C7/34E01C19/48E01C19/488E01C19/475E01C23/03E01C23/0906C04B2111/82C04B2111/00612C04B2111/0075C04B2201/50C04B14/02C04B14/06C04B16/0633C04B24/281C04B2103/54
Inventor 段永乐王典
Owner CHINA MCC17 GRP
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